Another Number, Another Letter: The Prospective Audi R4

Is Audi planning to expand the R line it introduced last month with the R8? That's the question posed by AutoBild, which offers its take on what such a beastie would look like. AB says it would be a direct competitor to BMW's prospective Z2 roadster, though with the underpinnings of an A4 and engine choices of the TT… »10/20/06 2:12pm10/20/06 2:12pm